Oak Hills, Iowa Demographics & Population 2026

A note before these figures: with a population of 137, Oak Hills's ACS estimates come from a small number of survey responses and carry wide margins of error. Individual percentages below — particularly rates that round to 0% or 100% — are approximations, not precise measurements. See data.census.gov for the published margins of error.

Population Overview

Oak Hills is a small community located in Iowa, within Des Moines County. The total population is 137. It ranks as the 791st most populous out of 1,017 Census-designated places in Iowa.

Age Demographics

The median age in Oak Hills is 57.4 years. This is 49% higher than the state median of 38.6 years. 16.1% of residents are 75 or older, suggesting a significant retirement-age population with implications for healthcare services and senior housing.

Economy, Income & Housing

The median household income in Oak Hills is $250,000+. This is 233% higher than the state median of $75,059. It is also 210% higher than the national median of $80,734. The poverty rate stands at 8.8%. This is 21% lower than the state poverty rate of 11.1%. The survey records no unemployed residents in Oak Hills, which reflects the size of the sample rather than a labor market without joblessness. The median home value is $373,900. Housing costs are 80% higher than the state median of $208,000. With a home-value-to-income ratio of just 1.5x, Oak Hills is one of the most affordable housing markets in the area. 100.0% of occupied housing units are owner-occupied. This homeownership rate is 39% higher than the state average of 71.7%.

Race & Ethnicity

The largest racial or ethnic group in Oak Hills is White (non-Hispanic), making up 67.9% of the population. Asian residents account for 13.1%. The Asian population is significantly higher than the state average (13.1% vs 2.5%).

Education

69.4% of residents aged 25 and older hold a bachelor's degree or higher. This places Oak Hills in the top 10% of all cities in the state for educational attainment. This is 121% higher than the state rate of 31.4%. Nationally, 35.7% of adults hold at least a bachelor's degree. No surveyed resident aged 25 or older reported leaving school before earning a high school diploma, though a rate of exactly 100% reflects the limits of a small sample. Notably, 48.6% of adults hold a graduate or professional degree, indicating a highly educated workforce.

Data Sources & Methodology

All demographic data for Oak Hills, Iowa is sourced from the U.S. Census Bureau's American Community Survey (ACS) 2020–2024 5-Year Estimates. The ACS collects data from approximately 3.5 million households annually and pools five years of responses so that even small communities can be measured, though the margin of error widens as the population falls. Comparisons are made against Iowa state averages and national averages calculated from the same dataset. Rankings reflect the city's position among all 1,017 Census-designated places in Iowa. Read more about how these figures are produced on our methodology page, or visit data.census.gov for official data.